Setting Neon Voltage (Ring Ping) - Avaya MCC1 Maintenance Procedures

Setting neon voltage (ring ping)

This procedure must be performed at installation and after replacement of the power supply.
NOTE:
The frequency (20, 25 or 50 Hz) is set by a switch on the power supply. Check the setting
on this switch to ensure it is properly set.
Set neon voltage to OFF
Neon voltage should be set to OFF under these conditions:
• Ringing option is set to 50 Hz. Neon voltage is not available.
• LED message lamps are used on telephones.
• No neon message waiting lamps on telephones.
To turn the neon voltage OFF:
1 Turn the neon voltage control to OFF (see
Adjust neon voltage
The neon voltage must be adjusted under these conditions:
• Ringing option is set to 25 Hz. Maximum neon voltage is 120 Volts.
• Neon message waiting lamps are present on telephones.
Use the following procedure to adjust the neon voltage:
1 Call a telephone with a neon message indicator and leave a message.
2 Check for "ring ping" (single ring pulse) each time the lamp flashes (approximately every 3
seconds).
3 Adjust the neon voltage control clockwise in small increments until the ring ping stops. See
Figure 119, Setting the neon voltage,
Ensure that the message lamp still lights when the adjustment is finished.
4 Enter logoff and press
5 Set the left and right doors onto the hinge pins and close the doors. The doors must be closed to
prevent EMI emissions. Tighten the door screws.
6 Set the cover panel onto the right panel and secure.
Maintenance Procedures
December 2003
Figure 119, Setting the neon voltage,
on page 396.
to logoff the system and to prevent unauthorized changes to data.
Enter
Additional maintenance procedures
Removing and restoring power
on page 396.)
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